<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<script type="text/javascript">
    var  aa=30;
    var  bb=(9/5)*aa+32;
    console.log("摄氏度"+aa)
    console.log("华氏度"+bb)

</script>
</body>
</html>